In this video, we solve LeetCode 3174 - Clear Digits using an efficient stack-based approach in O(n) time complexity.
We explain the problem statement, break it down step by step with visualizations, and perform a dry run to understand the logic. Finally, we implement the optimized C++ solution and analyze its time and space complexity.
🔹 Topics Covered:
✅ Problem Explanation
✅ Understanding Constraints
✅ Brute Force vs. Optimized Approach
✅ Stack-Based Solution (O(n))
✅ Step-by-Step Dry Run
✅ C++ Code Implementation
💻 Code Implementation:
https://codebeautify.org/alleditor/y25f769ad
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